Microsoft’s Corporate VP for Windows Julie Larson-Green was at WIRED’s Business Conference today, and she was put on the spot when asked by interviewer and WIRED Senior Editor Michael V. Copeland about the apparently sluggish start for Windows RT. RT’s failure is a consumer education problem, according to Larson-Green, since it’s very different from what’s come before.

Windows RT, for those unfamiliar or confused by the new familial breakdown of Windows following the introduction of version 8, is a lightweight version designed for ARM-powered devices (vs. x86, the architecture which full Windows OS runs on), which doesn’t offer access to the full suite of Windows software. According to our own Matt Burns, that has resulted in a big app gap, and made the Surface RT essentially a glorified web browsing tablet, which sounds like something different from a simple matter of properly framing the product.